ET324X / ET325X is a full-featured, its 3.5-inch large-screen has clear displays of reading, rich content, and a good result of display. It is mains-powered driving which makes it highly reliable. Its comprehensive features, full-range overload protection and unique design make it the first choice for electricians and university laboratories.
In addition, ET324X / ET325X are equipped with the calibration function which allows the user to calibrate according to actual needs and is simple and convenient.
 
Basic features

• 3.5-inch large-screen display with rich content, clear display of reading, and a good result of display.
• Dual parameter display: it can display two parameters of the same input signal (for example, with the AC voltage measurements, it can display simultaneously AC voltage and AC frequency value).
• Measurement speed points: FAST (6 times / second) → MID (4 times / sec) → SLOW (1 times / sec).
• Duty cycle measurement function
• Square wave output function
• Manual / automatic range setting function
• Communication interfaces: USB Device, RS232
• Support SCPI protocol and provide programming file
• AC and DC voltage, DC current, two-wire / four-wire resistance measurement.
• Cycle and frequency measurement, frequency of up to 20MHz.
• Capacitance measurement.
• Provide automatic trigger, external trigger, and single trigger measurements. (External trigger optional for the ET3240 and ET3241 models).
• Measurement capabilities for current up to 10A and voltage up to 1000V DC.
• Keypad lock function and system setup; languages, buzzer, screen brightness and so on can be configured according to various needs.
• Simple external calibration function
• Variety of mathematical functions: statistics (maximum, minimum), relative measurement, dB, dBm.
• On-off, diodes, reading hold, data hold / reading, key tone, trigger measurement and so on.

 
 

1. General technical specifications

Power supply voltage: 220V AC±10%, 110V AC ±10%, 45-65Hz.
Working environment: 0~40℃, relative humidity < 80%.
Storage environment: -10~50℃, relative humidity < 80%.
Dsiplay: 3.5-inch, 320 * 480 resolution, 16 M colour TFT LCD.
Dimensions: 265 mm * 105 mm * 305 mm.(width * height * depth).
Weight: 2.3kg.
 
 

Model		ET3240	ET3241	ET3255
Display screen		3.5” TFT LCD (resolution of 320*480)
Number of display digits		4 1/2	4 1/2	5 1/2
Signal terminal		Front end
Fastest measuring speed		7 readings/s		6 readings/s
Function	No.	Uncertainty, ±(% of reading + least significant digit )
DCV	Uncertainty	0.05+ 3	0.03+6	0.015+ 3
	Measurement range	10 uV~1000 V	1 uV~1000 V	1 uV~1000 V
	Maximum resolution	10uV	10uV	1uV
ACV	Uncertainty	0.8+ 80	0.5+40	0.2+ 100
	Measurement range	10 uV~750 V	10 uV~750 V	1 uV~750 V
	Maximum resolution	10uV	10uV	1uV
	Frequency range	40Hz ~ 1kHz	40Hz ~ 20kHz	40Hz ~ 100kHz
DCI	Uncertainty	0.35 +10	0.15+15	0.05 +10
	Measurement range	0.01 uA ~ 10 A	0.01 uA ~ 10 A	0.001 uA ~ 10 A
	Maximum resolution	0.01uA	0.01uA	0.001uA
ACI	Uncertainty	0.8+80	0.75+20	0.3+400
	Measurement range	0.01 uA ~ 10 A	0.01 uA ~ 10 A	0.001 uA ~ 10 A
	Maximum resolution	0.01uA	0.01uA	0.001uA
	Frequency range	40Hz ~ 1kHz	40Hz ~20kHz	40 Hz ~ 5kHz
Resistance	Uncertainty	0.1+ 20	0.1+5	0.02+ 6
	Measurement range	0.01Ω ~20MΩ	0.01Ω ~20MΩ	0.001 Ω ~20MΩ
	Maximum resolution	0.01Ω	0.01Ω	0.001Ω
Frequency/cycle	Uncertainty	0.2+10	0.2+10	0.1+3
	Measurement range	0.01 Hz ~20 MHz	0.01 Hz ~20 MHz	0.001 Hz ~20 MHz
	Maximum resolution	0.01Hz	0.01Hz	0.001Hz
Capacitance	Uncertainty	7+ 30	6+15	5+5
	Measurement range	1 pF ~ 10 mF	1 pF ~ 10 mF	1 pF ~ 10 mF
	Maximum resolution	1 11pF	0 1pF	1 1 pF
Mathematical functions:		Relative measurement, max/min, dB, dBm, reading hold
Data storage/reading		Yes
Interfaces		USB device standard, RS232 optional		USB Device, RS232
Trigger measurement		Yes
Square-wave output		Yes
Fast measurement		Optional configuration		Yes
Resistance 4-line measurement		Yes
External trigger measurement		None		Yes
AC+DC measurement				Yes
Calibration		Yes
On-off/diode		Yes
Limit test function		Yes

 
 
 
 
Standard accessories:
A set of meter probes, one double-end three-core power cord, one optical disc (standard configuration for ET3255 only), 2 spare power fuses, user’s manual
Optional accessories:
RS232 serial port line, USB cable
 
 
 
 General technical specifications
Display: 3.5” LCD display
Maximum display: 22000 (4 1/2 digit) or 220000 (5 1/2 digit) automatic polarity display and unit display
Range selection: Automatic/manual
Prompt of over-range: “OL” displayed on the display screen
Measurement test: ET-3255: 6 time/s (fast), 4times/s (medium), 1 time/s (slow)
ET-3240 and ET3241: 7 time/s (fast), 4times/s (medium), 2 times/s (slow)
Power voltage: AC 220V±10%, 50HZ
Operating environment: (0-40°C), relative humidity <80%
Storage environment: -10-50℃, relative humidity <80%
Dimensions: 265Mm×105mm×305mm (W×H×D)
Weight: 2.3Kg